PCM56UG4 - 16-Bit Audio DAC | Texas Instruments | 16-SOIC
料号： PCM56UG4 ✓ 量产中PCM56UG4 概述
A digital-to-analog converter is a signal-conversion IC that transforms digital PCM data into a continuously variable analog voltage or current. The PCM56UG4 belongs to the DAC family within the broader ADC/DAC and data-converter hierarchy. Its serial interface reduces the number of parallel data lines required, making it suitable for compact audio systems where board area and signal routing are important. The 16-SOIC package is also compatible with conventional surface-mount assembly and tube packaging.
The verified data highlights 96 dB dynamic range and maximum total harmonic distortion values of -92 dB at full-scale input and -74 dB at -20 dB input for the K-grade device. These figures make the part relevant to precision audio paths where distortion and noise can affect perceived signal quality. The converter is factory trimmed and tested for critical specifications, according to the available manufacturer datasheet material.
The PCM56UG4 uses a factory-trimmed ladder and scaling network with matched analog circuitry. The manufacturer material explains that conversion errors can arise from linearity, matching and tracking behavior, supply rejection, and reference errors. This makes careful power-supply design, grounding, and output-stage implementation important for achieving the rated performance in a finished audio product.
Typical applications include digital mixing consoles, professional audio interfaces, audio recording equipment, digital test and measurement systems, and signal-generation equipment. The device can be used where a 16-bit PCM stream must be converted into an analog audio signal while preserving low distortion and adequate dynamic range.
Designers should provide clean, symmetrical supply rails and follow the manufacturer’s recommended input, output, and decoupling arrangements. The dual supply requirement must be checked against the target system’s analog rails, while the output network should be designed for the intended load and signal level. The PCM56UG4 should not be selected solely by package and bit depth; interface timing, output amplitude, settling behavior, and system-level noise must also be verified.
直接替换替代料： PCM56UG4 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PCM56UG4 （相同外形与封装尺寸） ——差异在于 Package, Supply Voltage, Data Interface, External Components, Terminal Count.
PCM56U/1KG4
✅ 直接替换📋 参考替代料（不在目录中）
PCM56UG4 最大额定值与电气特性
| Product Type | 16-bit serial-input audio digital-to-analog converter |
| 分辨率 | 16 bit |
| Data Interface | Serial |
| Number of Channels | 1 channel |
| Supply Type | Dual ± supply |
| 电源电压 | ±4.75 V to ±13.2 V |
| Dynamic Range | 96 dB |
| Total Harmonic Distortion at Full Scale | -92 dB maximum |
| Total Harmonic Distortion at -20 dB Input | -74 dB maximum |
| Settling Time | 1.5 us nominal |
| 工作温度 | -25 °C to +70 °C |
| 封装 | 16-SOIC, 0.295 inch / 7.50 mm width |
| Terminal Count | 16 |
| 安装类型 | Surface mount |
| Packaging | Tube |
| Temperature Grade | Commercial |
| External Components | No external components required |
| Factory Trimming | Factory trimmed and tested |
PCM56UG4 16-soic, 0.295 inch / 7.50 mm width 引脚配置指南
PCM56UG4（16-soic, 0.295 inch / 7.50 mm width 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： PCM56UG4.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PCM56UG4 适用于 6 应用s: Professional Audio Mixing Console, Digital Audio Recording Interface, Audio Signal Generator, Data-Acquisition Instrumentation, Digital Test and Measurement System, Industrial Audio Control Panel.
Professional Audio Mixing Console
The PCM56UG4 fits a professional audio mixing console because its 16-bit serial PCM input converts digital channel data into an analog signal without requiring a parallel data bus. The 96 dB dynamic range provides a useful foundation for clean audio reconstruction, while the -92 dB maximum full-scale THD figure is relevant to low-distortion output paths. The 16-SOIC package supports compact surface-mount routing, and the 1.5 us nominal settling time can support standard audio update rates. Designers should still budget for clean dual rails, low-jitter clocking, a suitable reconstruction filter, and an output stage matched to the console’s load.
推荐
Digital Audio Recording Interface
PCM56UG4 is appropriate for a digital audio recording interface that accepts serial PCM data and requires an analog monitor output. Its 16-bit resolution preserves the nominal source word length, and the verified 96 dB dynamic-range figure supports a low-noise conversion stage. The dual ±4.75 V to ±13.2 V operating range permits integration around balanced or bipolar analog circuitry. Because the converter itself does not remove clock-jitter, supply-noise, or reconstruction-filter errors, the interface should use a stable clock, symmetrical low-noise rails, controlled grounding, and an optimized output network.
推荐
Audio Signal Generator
The PCM56UG4 can serve as the digital-to-analog stage of an audio signal generator when the system generates PCM waveforms at a suitable update rate. Its 16-bit serial interface reduces wiring complexity, while its 1.5 us nominal settling time helps support controlled waveform transitions. The 96 dB dynamic range and the -74 dB maximum distortion specification at -20 dB input are useful considerations for low-level test signals. For precision generation, clock jitter, reference accuracy, reconstruction filtering, and output attenuation must be evaluated separately because converter specifications alone do not establish total signal accuracy.
推荐
Data-Acquisition Instrumentation
PCM56UG4 is suitable for instrumentation that receives digital PCM data and needs an analog voltage for downstream measurement or excitation. The 16-bit resolution provides a direct match for many digital acquisition paths, while the 96 dB dynamic range provides useful signal headroom. Its 1.5 us nominal settling time and serial interface are advantageous when minimizing parallel routing on a densely populated board. The design must account for the dual-supply requirement and use an output buffer with suitable input impedance, bandwidth, noise, and settling behavior for the intended measurement bandwidth.
推荐
Digital Test and Measurement System
The PCM56UG4 can be used inside a digital test and measurement system as the bridge between a digital waveform source and an analog test point. Its serial PCM input and 16-bit resolution support economical connection to digital processors, and the 96 dB dynamic range helps maintain signal integrity over the conversion stage. The commercial -25 °C to +70 °C operating range covers typical indoor laboratory and production environments. For higher precision, engineers should characterize clock and power-supply noise and verify that the external reconstruction filter and output attenuator meet the required frequency and amplitude accuracy.
推荐
Industrial Audio Control Panel
PCM56UG4 fits an industrial audio control panel that receives digital audio commands or notification tones and produces an analog line-level signal. The 16-bit PCM interface allows integration with a common serial audio bus, while the -92 dB maximum full-scale THD supports intelligible, low-distortion playback. The 16-SOIC package is practical for automated surface-mount assembly, and the tube packaging shown in the verified data can support prototype or manual-assembly workflows. Production designs should verify electromagnetic-emissions behavior, isolate digital return currents from the analog output, and select an output connector and protection network appropriate to the enclosure and cable environment.
推荐
推荐产品汇总
工程参考数据： PCM56UG4 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PCM56U/1KG4 | PCM56U |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 16-SOIC | 16-SOIC | 16-SOIC |
| Resolution | 16 bit | 16 bit | 16 bit |
| Data Interface | Serial | Serial | Serial |
关键差异点
- Factory-trimmed 16-bit conversion path （对比 PCM56U)
- Documented 96 dB dynamic range （对比 PCM56U/1KG4)
- Commercial 16-SOIC implementation （对比 PCM56U/1KG4)
设计说明
Use clean, symmetrical positive and negative supply rails because PCM56UG4 is specified for dual ±4.75 V to ±13.2 V operation. Place local decoupling capacitors close to the supply pins and keep analog return currents separate from digital switching paths. Confirm rail startup order and grounding so the converter is not exposed to an out-of-range intermediate voltage. Supply noise, regulator rejection, and ripple must be evaluated against the application’s full-scale audio requirement rather than only the converter’s stated dynamic range.
Route the serial data and clock traces away from the analog output and power-supply nodes, and terminate the clock according to the interface timing requirements. Keep the DAC output path short, use a ground reference that is continuous beneath the analog section, and place any reconstruction filter close enough to the converter to minimize parasitic pickup. The 16-SOIC footprint requires careful escape routing, but the compact package can still provide a short analog path when component and ground placement are prioritized.
Do not treat 16-bit resolution as a guarantee of 16-bit system accuracy. Clock jitter, reference error, reconstruction-filter distortion, output-loading effects, and supply noise can dominate the final performance. In addition, the verified listing identifies tube packaging, so a design intended for high-volume reel-fed assembly should confirm the production orderable suffix before releasing the PCB and assembly documents.
合规信息
The supplied verified data identifies PCM56UG4 as a commercial-grade Texas Instruments audio DAC but does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than assumed.
